#5B8018#5B8018

#5B8018 is a mid, vivid yellow-green. Relative luminance 0.177; OKLCH L 55.2% C 0.134 H 128.0°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#5B8018
RGB	rgb(91, 128, 24)
HSL	hsl(81, 68%, 30%)
HSV	hsv(81, 81%, 50%)
CMYK	cmyk(28.9%, 0%, 81.3%, 49.8%)
CIE-LAB	lab(49.16, -28.67, 47.91)
CIE-LCH	lch(49.16, 55.83, 120.90°)
OKLab	oklab(55.21% -0.0825 0.1055)
OKLCH	oklch(55.21% 0.134 128)
XYZ	xyz(12.1984, 17.7281, 3.6432)
Luminance	0.1773 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8018 #3D1880

analogous

#807118 #5B8018 #278018

triadic

#5B8018 #185B80 #80185B

tetradic

#5B8018 #188071 #3D1880 #801827

square

#5B8018 #188071 #3D1880 #801827

split-complementary

#5B8018 #182780 #711880

monochromatic

#121A05 #364C0E #5B8018 #80B422 #A0DA39

Accessibility & contrast

On white

4.62

#5B8018 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#5B8018 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5B8018

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8018	#FFFFFF	#000000	##FFFFFF
##5B8018	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#877600

Deuteranopia (green-blind)

#827423

Tritanopia (blue-blind)

#5E7A6D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5b8018;
/* rgb */ color: rgb(91, 128, 24);
/* oklch */ color: oklch(55.2% 0.134 128.0);

Tailwind

colors: {
  custom: {
    50: '#8da55f',
    500: '#5b8018',
    950: '#000000',
  },
}

SCSS

$custom: #5b8018;
$custom-light: #8da55f;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8018",
  "rgb": {
    "r": 91,
    "g": 128,
    "b": 24
  },
  "hsl": {
    "h": 81.346,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.55209,
    "c": 0.13391,
    "h": 128
  },
  "luminance": 0.17728
}

Semantic roles & 50–950 ramp

primary

#5B8018

secondary

#6940B4

accent

#3DEB7B

background

#F8FAF5

surface

#F0F4EA

border

#CBCEC6

text

#0D0F05

muted

#7D7F79

Preview Lab

Preview with #5B8018

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →